Forgot I only had 1/2 of this bottle before going to San Diego. Gassed and re-corked I intended to take it with me. Forgot...Memory's the 2nd thing to go. Was sure this sucker was destined for the big vinegar barrel in the sky, so with trepidation opened it aand ..."VOILA!!!" , this puppy was still alive and breathing. Hadn't improved but gave a great account of itself. WW